Figure 2

Isodose lines around the wooden house at the eleven observation points defined above (red dots) resulting from homogeneous 137Cs contamination 2.5 cm below ground level. The shading indicates the fraction of dose contribution to the observation point including the areas that are surrounded by the respective one. When the outside line for the isodose line of a certain relative dose reduction reaches the limit of the calculation grid, its shape may differ for a larger calculation grid.